Page 6 - Grade 10 C.Math

;dfwfg
k|Zgfg';f/ , n(U) = 52

dfgf}F lj|ms]6 dg kg]{ ljb\ofyL{x¿sf] ;d"x C / k'm6an dg k/fpg] ljb\ofyL{x¿sf] ;d"x F 5 .

ca, n(C) = 28
n(CF) = 18
Curriculum Development Centre
n(F) = 24 n(C) = 28
n(C  F) = 18
n(C  F) = 6 C F U

-s_ o;nfO{ e]glrqdf bfofFtk{m b]vfOPcg';f/ n(F) = 24
k|:t't ug{ ;lsG5 .

-v_ e]glrq cjnf]sg ubf{ lj|ms]6 dfq
dg k/fpg] ljb\ofyL{x¿sf] ;ª\Vof = 28 – 18 = 10
n(CF) = 6
n (C) = 10
0
/ To:t} k'm6an dfq dg k/fpg] ljb\ofyL{x¿sf] ;ª\Vof = 24 – 18 = 6
 n (F) = 6
0
Pp6f dfq v]n v]Ng dg k/fpg] ljb\ofyL{x¿sf] ;ª\Vof

= lj|ms]6 dfq dg k/fpg]sf] ;ª\Vof ± k'm6an dfq dg k/fpg]sf] ;ª\Vof

= n (C) + n (F) = 10 + 6 = 16
0 0

cEof; 1.1
1. lbOPsf] e]glrqaf6 tn lbOPsf ;d"xx¿ tyf ;d"xx¿sf] u0fgfTds ;ª\Vof kTtf
nufpg'xf];\ M A B U
1
(i) n(A) (ii) n(B) (iii) n(A  B) 2 16 3
(iv) n (A) (v) n (B) (vi) n(A) 4 10 6 9
0 0 5 12
(vii) n(A  B) (viii) n(A  B) (ix) n(A  B) 8 20 18 15
14 21 19
(x) n(U) 11 7 13 17

2. (a) olb n(A) = 70, n(B) = 60 / n(A  B) = 50 eP n(A  B) / n (A) kTtf nufP/ leGgf leGg}
0
e]glrqdf k|:t't ug'{xf];\ .

(b) ;d"xx¿ A / B ;j{Jofks ;d"xx¿ U sf pk;d"xx¿ x'g\, h;df n(U) = 70, n(A) = 40,
\
]
'
]
n(B) = 30 / n(A  B) = 15 5 eg eglrq agfP/ n(A  B) / n(A  B) kTtf nufpgxf; .
]
3 ul0ft, sIff – 10